The trial of the former Bosnian Serb military commander Ratko Mladic has been adjourned in The Hague until further notice.
The court said the prosecution had failed to transfer documents to the defence, which has argued it’s not ready and needs another six months to prepare.
A judge said a new date would be announced as soon as possible.
Earlier, prosecutors were able to outline their
evidence of the commander’s alleged involvement in the 1995 massacre at Srebrenica.
A video was played to the court which prosecutors said showed Mladic entering the town and vowing revenge on the Muslims.
Over the next few days some 8,000 men and boys were executed in what was supposed to be a UN enclave, in the worst single atrocity in Europe since World War II.
A lawyer for the victims said this was to be an important day for the “Mothers of Srebrenica” group, some of whose members were attending.
Mladic who’s 70 is accused of commanding Bosnian Serb troops as they murdered and persecuted Muslims and Croats.
He has refused to enter a plea, but denies wrongdoing.